11854487434 has 8 divisors (see below), whose sum is σ = 17788087908. Its totient is φ = 5925124800.

The previous prime is 11854487419. The next prime is 11854487479. The reversal of 11854487434 is 43478445811.

It can be written as a sum of positive squares in 2 ways, for example, as 10899986409 + 954501025 = 104403^2 + 30895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052457 + ... + 1063660.

Almost surely, 2^11854487434 is an apocalyptic number.

11854487434 is a deficient number, since it is larger than the sum of its proper divisors (5933600474).

11854487434 is a wasteful number, since it uses less digits than its factorization.

11854487434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118920.

The product of its digits is 1720320, while the sum is 49.

The spelling of 11854487434 in words is "eleven billion, eight hundred fifty-four million, four hundred eighty-seven thousand, four hundred thirty-four".